40022123436 has 48 divisors (see below), whose sum is σ = 103776472800. Its totient is φ = 13338726336.

The previous prime is 40022123399. The next prime is 40022123437. The reversal of 40022123436 is 63432122004.

40022123436 is a `hidden beast` number, since 4 + 0 + 0 + 221 + 2 + 3 + 436 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40022123437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 824530 + ... + 871718.

It is an arithmetic number, because the mean of its divisors is an integer number (2162009850).

Almost surely, 2^40022123436 is an apocalyptic number.

It is an amenable number.

40022123436 is an abundant number, since it is smaller than the sum of its proper divisors (63754349364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40022123436 is a wasteful number, since it uses less digits than its factorization.

40022123436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55055 (or 55047 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The spelling of 40022123436 in words is "forty billion, twenty-two million, one hundred twenty-three thousand, four hundred thirty-six".